/*
 * Copyright (c) 2011 Imre Fazekas.
 * All rights reserved.
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * Redistributions of source code must retain the above copyright notice, this
 * list of conditions and the following disclaimer.
 *
 * Redistributions in binary form must reproduce the above copyright notice,
 * this list of conditions and the following disclaimer in the documentation
 * and/or other materials provided with the distribution.
 * Neither the name of the Brillien nor the names of its
 * terms and concepts may be used to endorse or promote products derived from this
 * software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */

package com.vii.brillien.core.component;

import com.vii.brillien.core.management.BrillienServices;
import com.vii.brillien.kernel.BrillienException;
import com.vii.brillien.kernel.annotations.Indispensable;
import com.vii.brillien.kernel.annotations.PresenceService;
import com.vii.brillien.kernel.annotations.lifecycle.Sparkle;
import com.vii.brillien.kernel.axiom.atomic.Flow;
import com.vii.brillien.kernel.axiom.atomic.Presence;

import static com.vii.brillien.core.management.FlowServices.registerFlow;

/**
 * Spacialized Manager type used to manage SuperFlow types
 */
@PresenceService( logLevel = PresenceService.FINE )
@Sparkle
public class SuperFlowManager<F extends Flow> extends AbstractPresenceManager<F> {

    protected boolean isTransactionUnit;
    protected boolean isIndispensable;

    /**
     * Generates new Flow ID
     */
    protected String getNewFlowID(){
        return name + BrillienServices.nextFlowID();
    }

    @Override
    public void initPresenceManager( String presenceName, Class<F> PresenceClass ) throws BrillienException {
        super.initPresenceManager( presenceName, PresenceClass );

        //isTransactionUnit   = PresenceClass.isAnnotationPresent( Transaction.class );
        isIndispensable     = PresenceClass.isAnnotationPresent( Indispensable.class );
    }

    protected F initFlowInstance( F t ){
        t.setName( getName() );
        if( t.getFlowID() == null )
            t.setFlowID( getNewFlowID() );

        t.setIndispensable( isIndispensable );

        registerFlow( t );

        return t;
    }

    @Override
    public F getInstance(Presence caller, String name) throws BrillienException {
        if( caller instanceof Flow ){
            if( resident != null && resident.getFlowID().equals( caller.getFlowID() ) ){
                if( name!=null && !resident.getName().equals( name ) )
                    throw new BrillienException("Instance already created with different name!" + resident.getName() + " " + name );

                log( "Reusing resident instance: " + PresenceClass + " in flow: " + caller.getFlowID() );
                return resident;
            }

            for (F sparkle : sparkles)
                if( sparkle.getFlowID().equals( caller.getFlowID() ) ){
                    if( name!=null && !sparkle.getName().equals( name ) )
                       throw new BrillienException("Instance already created with different name!" + sparkle.getName() + " " + name );

                    log( "Reusing sparkle instance: " + PresenceClass + " in flow: " + caller.getFlowID() );
                    return sparkle;
                }

            for( F consonant : consonants.values() )
                if( consonant.getFlowID().equals( caller.getFlowID() ) ){
                    if( name!=null && !consonant.getName().equals( name ) )
                       throw new BrillienException("Instance already created with different name!" + consonant.getName() + " " + name );

                    log( "Reusing consonant instance: " + PresenceClass + " in flow: " + caller.getFlowID() );
                    return consonant;
                }
        }

        F t = super.getInstance( caller, name );

        return initFlowInstance( t );
    }

    @Override
    public F getInstance( String flowID, String name ) throws BrillienException {
        log( "Request for get an instance for::" + flowID + " of " + getName() + " " + flowIDPrefix );
        
        if( resident != null && resident.getFlowID().equals( flowID ) ){
            if( name!=null && !resident.getName().equals( name ) )
                throw new BrillienException("Instance already created with different name!" + resident.getName() + " " + name );

            log( "Reusing resident instance: " + PresenceClass + " in flow: " + flowID );
            return resident;
        }

        for (F sparkle : sparkles)
            if( sparkle.getFlowID().equals( flowID ) ){
                if( name!=null && !sparkle.getName().equals( name ) )
                   throw new BrillienException("Instance already created with different name!" + sparkle.getName() + " " + name );

                log( "Reusing sparkle instance: " + PresenceClass + " in flow: " + flowID );
                return sparkle;
            }

        for( F consonant : consonants.values() )
            if( consonant.getFlowID().equals( flowID ) ){
                if( name!=null && !consonant.getName().equals( name ) )
                   throw new BrillienException("Instance already created with different name!" + consonant.getName() + " " + name );

                log( "Reusing consonant instance: " + PresenceClass + " in flow: " + flowID );
                return consonant;
            }

        F t = super.getInstance( flowID, name );

        return initFlowInstance( t );
    }

}

